01-28-2018 05:44 AM
I am pasting the reply from mr19th below, and here is your why explanation: depending on your model of printer, this may work for you. On my MX 922, in front of ( to the left of as you look at the printer) the big rectangular glass panel, there is a narrow glass panel. When you place a page on the big glass, it does not involve the little glass. When you use the feeder, the page passes over the little panel. The little panel may have specs of material on it, or on the black plastic guide in front of it, or on the inside cover, to the left, my model has some black and white plastic guides, these may have caught some pieces of whatever. Clean the glass and these plastic guides. It worked for me.
Here is mr19th's explanation:
"At the very front of the glass bed there should be a separate thin strip of glass that has a plastic strip over it for protection. That's the strip of glass that scans the paper fed into the scanner from the top. So what you need to do is lift the corner of the plastic, to get under it, and run a cloth or something under the plastic strip and over the glass. You can use almost anything under it to clear the glass/plastic strip. I used a moist cleaning wipe. Not a good idea because of the moisture. I could see the moisture from the wipe clinging to the plastic strip on the glass after I wiped it, so I had to go under it again with one of those computer screen cleaners and everything was dry.
I scanned a blank page and the page scanned blank. Perfect! I hope this helps."
See if this works for you. Good luck.
03-20-2018 07:26 AM
New to this so not sure if I'm posting correctly.
I have an Pixma MX926 when I scan a document via the ADF a black vertical line has suddenly appeared… I have done all the usual clean, deep clean and platen glass clean.
In other posts...Not sure how the credit card is being used or where
Would appreciate any advice on what else to do…Thanks
03-20-2018 10:58 AM
I have an MX922 so I hope it is similar to yours-
Photo 1 the tiny glass strip to the left of the platen glass- clean that and the black guide above it ( to the left of it).
Photo 2 the bottom inside of the lid, clean all of the black and white guides
Hope that helps!
04-02-2018 09:10 PM
05-26-2018 07:12 AM
I had the same problem and tried all cleaning methods they suggested and it didn't work but I found one that did. I just got new eyeglasses and got a cleaning cloth with them I cleaned the glass for the ADF with this dry and that did it, use a flashlight on an angle to finally see the small dot that causes the problem. Hope this helps
08-14-2018 05:36 AM
Having same problem with canon MF5770. Scanning (e.g. blank A4 page) from the ADF has grey lines while copying from the ADF prints a white page), meaning that it's not a cleaning problem (or scanning uses some other mechanism than when reading the page for printing which wouldn't be logical). Of course scanning from glass works too. Replacing drivers can't do since latest seem to be 2015 and are installed. How to fix this?